Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

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Link: lemon-manuals.la

Fuel Delivery Check

Test 1 - 2:




Test 3 - 6:




Test 7 - 9:






SYMPTOM
CHECKING FUEL DELIVERY

POSSIBLE CAUSES
- Fuel pump relay
- Fuel pressure out of specification
- restricted fuel supply line
- Fuel pump inject strainer plugged
- Fuel pump
- (A61) fused B+ circuit
- (A141) fuel pump relay output circuit open
- (Z1) fuel pump ground circuit excessive resistance
- Fuel pump module